<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>数据统计</el-breadcrumb-item>
        <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>


    <!-- 卡片视图区域 -->
    <el-card>
        <!-- 2. 为ECharts准备一个具备大小（宽高）的Dom -->
        <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
// 1. 引入echarts
import * as echarts from 'echarts'
import _ from 'lodash'
export default {
    name: 'Report',
    data() {
        return {
            // 需要合并的数据
            options: {
                title: {
                    text: '用户来源'
                },
                tooltip: {
                    trigger: 'axis',
                    axisPointer: {
                        type: 'cross',
                        label: {
                            backgroundColor: '#E9EEF3'
                        }
                    }
                },
                grid: {
                    left: '3%',
                    right: '4%',
                    bottom: '3%',
                    containLabel: true
                },
                xAxis: [{boundaryGap: false}],
                yAxis: [{type: 'value'}]
            }
        }
    },
    created() {

    },
    // 挂载时 页面上的DOM元素 已经被渲染完毕
    async mounted() {
        // 3. 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));
   
        // 4. 获取图表的配置项和数据
        const {data: res} = await this.$http.get(`reports/type/1`)
        if(res.meta.status !== 200) return this.$message.error('获取报表数据失败！')
        const result = _.merge(res.data,this.options)

        // 5. 使用刚指定的配置项和数据显示图表。
        myChart.setOption(result);
    },

    methods: {
         getReportList(){

        }
    },
}
</script>

<style scoped>

</style>